Constantine the Great begins construction on Trier Cathedral on the site of his mother Helena's imperial palace. Four times larger than the present cathedral, it occupies the site of the present cathedral, the Leibfrauenkirche, Cathedral Square, the adjoi
1035
The surviving part of the 4th-century Trier Cathedral is renovated and expanded in the Romanesque style.
1035
Construction of Trier Cathedral
1512
The Holy Robe of Christ, along with other important relics said to have been brought by St. Helena from the Holy Land, is discovered in the high altar of Trier Cathedral. The Robe is put on public display for 23 days, during which more than 100,000 pilgri
1513
A wooden balcony is built on the west front of Trier Cathedral for displaying the Holy Robe and other relics discovered the previous year.
1933
Exposition of the Holy Robe
1959
The Holy Robe relic is sealed in a shrine in its own chapel in Trier Cathedral, where it remains today.
